Mouth Diseases

Blister or Cyst on Roof of Mouth

06/25/2010

Question:

I have had blisters on the roof of my mouth. I had about 3 blisters, one behind the front teeth and two further back. They seem to have fluid in them and have been there for about 4 weeks. I had a bad taste in my mouth with them. I went to the doctor 6 days ago and started antibioltics and an anti viral. I still have the blister (the largest one) behind the front teeth. It keeps filling up with fluid and I play with it with my tongue constantly. The taste seems to have mostly gone away. The doctor has no idea what is causing it or what it is. I don`t think the antibiotic will get rid of it as I only have 3 left. Should I see a dentist next? It is slightly sore when I keep pressing my tongue against it.

Answer:

Most definitely you need to have this evaluated by your dentist.

There are a number of possible causes of the "fluid filled blisters", but based upon the fact that they are associated with "bad taste", they may be the result of an odontogenic infection. Other possible causes of vesicle or blister formation in the mouth include:

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